Journal ArticleDOI
Experimental Investigation of Turbulent Convective Heat Transfer and Pressure Loss of Alumina/Water and Zirconia/Water Nanoparticle Colloids (Nanofluids) in Horizontal Tubes
TLDR
The turbulent convective heat transfer behavior of alumina (Al 2 O 3 ) and zirconia (ZrO 2 ) nanoparticle dispersions in water is investigated experimentally in a flow loop with a horizontal tube test section at various flow rates (9000 <Re < 63,000), temperatures (21-76°C), heat fluxes (up to ∼190 kW/m 2 ), and particle concentrations (0.9-3.6 vol %) as mentioned in this paper.Abstract:
The turbulent convective heat transfer behavior of alumina (Al 2 O 3 ) and zirconia (ZrO 2 ) nanoparticle dispersions in water is investigated experimentally in a flow loop with a horizontal tube test section at various flow rates (9000<Re < 63,000), temperatures (21-76°C), heat fluxes (up to ∼190 kW/m 2 ), and particle concentrations (0.9-3.6 vol % and 0.2-0.9 vol % for Al 2 O 3 and ZrO 2 , respectively). The experimental data are compared to predictions made using the traditional single-phase convective heat transfer and viscous pressure loss correlations for fully developed turbulent flow, Dittus-Boelter, and Blasius/MacAdams, respectively. It is shown that if the measured temperature- and loading-dependent thermal conductivities and viscosities of the nanofluids are used in calculating the Reynolds, Prandtl, and Nusselt numbers, the existing correlations accurately reproduce the convective heat transfer and viscous pressure loss behavior in tubes. Therefore, no abnormal heat transfer enhancement was observed in this study.read more
Citations
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Journal ArticleDOI
Enhancement of heat transfer using nanofluids—An overview
TL;DR: A colloidal mixture of nano-sized particles in a base fluid, called nanofluids, tremendously enhances the heat transfer characteristics of the original fluid, and is ideally suited for practical applications due to its marvelous characteristics.
Journal ArticleDOI
Small particles, big impacts: A review of the diverse applications of nanofluids
Robert A. Taylor,Sylvain Coulombe,Todd Otanicar,Patrick E. Phelan,Andrey Gunawan,Wei Lv,Gary Rosengarten,Ravi Prasher,Himanshu Tyagi +8 more
TL;DR: Nanofluids have seen enormous growth in popularity since they were proposed by Choi in 1995 as mentioned in this paper, and there were nearly 700 research articles where the term nanofluid was used in the title, showing rapid growth from 2006 (175) and 2001 (10).
Journal ArticleDOI
Recent advances in modeling and simulation of nanofluid flows-Part I: Fundamentals and theory
Omid Mahian,Omid Mahian,Omid Mahian,Lioua Kolsi,Mohammad Amani,Patrice Estellé,Goodarz Ahmadi,Clement Kleinstreuer,Jeffrey S. Marshall,Majid Siavashi,Robert A. Taylor,Hamid Niazmand,Somchai Wongwises,Somchai Wongwises,Tasawar Hayat,Tasawar Hayat,Arun V. Kolanjiyil,Alibakhsh Kasaeian,Ioan Pop +18 more
TL;DR: A review of the latest developments in modeling of nanofluid flows and heat transfer with an emphasis on 3D simulations can be found in this paper, where the main models used to calculate the thermophysical properties of Nanofluids are reviewed.
Journal ArticleDOI
Nanofluids: from vision to reality through research
TL;DR: Nanofluids are a new class of nanotechnology-based heat transfer fluids engineered by dispersing and stably suspending nanoparticles with typical length on the order of 1-50 nm in traditional heat transfer fluid.
Journal ArticleDOI
Laminar convective heat transfer and viscous pressure loss of alumina–water and zirconia–water nanofluids
TL;DR: In this paper, heat transfer and viscous pressure loss were investigated for alumina-water and zirconia-water nanofluids in a flow loop with a vertical heated tube.
References
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Book
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TL;DR: The most influential nineteenth-century scientist for twentieth-century physics, James Clerk Maxwell (1831-1879) demonstrated that electricity, magnetism and light are all manifestations of the same phenomenon: the electromagnetic field as discussed by the authors.
Journal ArticleDOI
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Journal ArticleDOI
Investigation on Convective Heat Transfer and Flow Features of Nanofluids
Yimin Xuan,Qiang Li +1 more
TL;DR: In this article, an innovative new class of heat transfer fluids can be engineered by suspending metallic nanoparticles in conventional heat-transfer fluids, which are expected to exhibit high thermal conductivities compared to those of currently used heat transfer fluid, and they represent the best hope for enhancing heat transfer.
Journal ArticleDOI
Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles
Bock Choon Pak,Young I. Cho +1 more
TL;DR: In this article, the authors used a Brookfield rotating viscometer to measure the viscosities of the dispersed fluids with γ-alumina (Al2O3) and titanium dioxide (TiO2) particles at a 10% volume concentration.